USN-4656-2: X.Org X Server vulnerabilities
USN-4656-2: X.Org X Server vulnerabilities USN-4656-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server XKB extension incorrectly handled certain inputs. A local attacker could possibly use this issue to escalate privileges. Source: USN-4656-2: X.Org X Server vulnerabilities